Effect-free forms such as if/then/else for Emacs Lisp.
(require 'syntactic-sugar) (if t (then (message "true")) (else (message "false"))) (unwind-protect (protected (error "Error")) (unwind (message "cleanup")))
This library offers absolutely no functionality! The following
macros are provided as synonyms for
then else protected unwind
These macros can be used to clarify
Note that as synonyms for
progn, these forms have no useful
effects, and no additional syntax check is done, so nothing
prevents you from writing obfuscatory expressions such as
(if t (else 1) (then 2)) ; same as (if t (progn 1) (progn 2))
or idiotic expressions such as
(if t (protected 1) (unwind 2))
So, think of these macros as glorified comments. And realize that if you are tempted to use them, if in fact you have even read the documentation to this point, you are hopelessly impure at heart.
To use syntactic-sugar, place the
syntactic-sugar.el library somewhere
Emacs can find it, and add the following to your
When this library is loaded, the provided forms are registered as
keywords in font-lock. This may be disabled via
The included macros are intentionally not autoloaded, because they are outside the package namespace.
Compatibility and Requirements
GNU Emacs version 24.4-devel : yes, at the time of writing GNU Emacs version 24.3 : yes GNU Emacs version 23.3 : yes GNU Emacs version 22.2 : yes GNU Emacs version 21.x and lower : unknown
No external dependencies